About two hundred people are protesting over the federal government's new anti-terrorism laws at Melbourne's Barwon prison today.
Kim Bullamore is a spokeswoman for the Civil Rights Defence group, which has organised the rally.
She says protestors are demanding the new laws to be scrapped.
Ms Bullamore says the rally is being held in front of a prison where several men charged with terrorism offences are detained.
"What these men have been charged with is being part of some sort of terrorist organisation. It has not been specified what it is, " she says.
"Basicly these men are in a friendship group and they share similar religious backgrounds, but other that that, there is very little information of what they supposedly have done".
"The laws are so vague at the moment and so broad, that anything can be held up as being supposedly contributing to terrorism," Ms Bullamore adds.